CLF-C02 Billing and Pricing 5 — Questions and Answers
Question 1: Which AWS pricing concept means customers pay less per unit as their usage of a service increases?
- Pay-as-you-go
- Volume-based discounts (tiered pricing) (Correct answer)
- Reserved capacity pricing
- Spot pricing
Correct answer: Volume-based discounts (tiered pricing)
Many AWS services use tiered pricing where the per-unit cost decreases as monthly usage crosses higher volume thresholds.
Question 2: A company is migrating to AWS and wants to understand the Total Cost of Ownership compared to their on-premises infrastructure. Which tool helps with this analysis?
- AWS Pricing Calculator
- AWS Migration Hub
- AWS TCO Calculator (now part of Pricing Calculator) (Correct answer)
- AWS Trusted Advisor
Correct answer: AWS TCO Calculator (now part of Pricing Calculator)
The TCO analysis functionality, now integrated into the AWS Pricing Calculator, helps compare on-premises costs to AWS cloud costs to quantify potential savings.
Question 3: Which of the following costs are always the customer's responsibility under the AWS shared responsibility model for billing?
- Physical server maintenance
- Data center cooling and power
- EC2 instance hours consumed (Correct answer)
- Hypervisor patching
Correct answer: EC2 instance hours consumed
Customers are responsible for paying for the AWS services they consume, such as EC2 instance hours, while AWS covers infrastructure costs like hardware and facilities.
Question 4: What type of AWS Savings Plan specifically targets EC2 usage within a single instance family in a specific region?
- Compute Savings Plans
- EC2 Instance Savings Plans (Correct answer)
- SageMaker Savings Plans
- RDS Savings Plans
Correct answer: EC2 Instance Savings Plans
EC2 Instance Savings Plans offer a higher discount than Compute Savings Plans in exchange for committing to a specific instance family and AWS region.
Question 5: A developer account accidentally leaves a large EC2 instance running for an entire month. How does AWS charge for this usage?
- AWS waives the charge since it was accidental
- AWS charges for the full month of On-Demand usage at standard rates (Correct answer)
- AWS charges only for the first 72 hours as a trial period
- AWS caps the charge at the Reserved Instance equivalent price
Correct answer: AWS charges for the full month of On-Demand usage at standard rates
AWS charges for all running EC2 instances at On-Demand rates based on actual usage time, regardless of intent; there are no automatic waivers for accidental usage.
Question 6: Which feature of AWS Cost Explorer helps predict future AWS spending based on historical usage?
- Budget Alerts
- Cost Forecasting (Correct answer)
- Cost Allocation Tags
- Rightsizing Recommendations
Correct answer: Cost Forecasting
AWS Cost Explorer's forecasting feature uses historical usage data to project future costs for up to 12 months, helping with budget planning.
Question 7: Which AWS service provides recommendations to help reduce costs by identifying idle or underutilized resources?
- AWS Config
- AWS Trusted Advisor (Correct answer)
- AWS Systems Manager
- AWS Inspector
Correct answer: AWS Trusted Advisor
AWS Trusted Advisor analyzes your AWS environment and provides cost optimization checks, flagging idle EC2 instances, underutilized EBS volumes, and other waste.
CLF-C02 Billing and Pricing 5
Which AWS pricing concept means customers pay less per unit as their usage of a service increases?